ubuntuone-launch crashed with ImportError in __main__: No module named ubuntuone.platform.credentials

[Niko]

Binary package hint: ubuntuone-client

at system start

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: ubuntuone-client (not installed)
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
NonfreeKernelModules: nvidia wl
Architecture: i386
Date: Wed Apr 6 16:31:04 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/ubuntuone-launch
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python /usr/bin/ubuntuone-launch
ProcEnviron:
 LANGUAGE=de:zh_CN
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/ubuntuone-launch']
SourcePackage: ubuntuone-client
Title: ubuntuone-launch crashed with ImportError in __main__: No module named ubuntuone.platform.credentials
Traceback:
 Traceback (most recent call last):
   File "/usr/bin/ubuntuone-launch", line 56, in <module>
     from ubuntuone.platform.credentials import CredentialsManagementTool
 ImportError: No module named ubuntuone.platform.credentials
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #721893, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.